>>> segment_tree = SegmentTree(15) >>> segment_tree.left(1) 2 >>> segment_tree.left(2) 4 >>> segment_tree.left(12) 24
(self, idx: int)
| 13 | self.flag = [0 for i in range(4 * size)] # flag for lazy update |
| 14 | |
| 15 | def left(self, idx: int) -> int: |
| 16 | """ |
| 17 | >>> segment_tree = SegmentTree(15) |
| 18 | >>> segment_tree.left(1) |
| 19 | 2 |
| 20 | >>> segment_tree.left(2) |
| 21 | 4 |
| 22 | >>> segment_tree.left(12) |
| 23 | 24 |
| 24 | """ |
| 25 | return idx * 2 |
| 26 | |
| 27 | def right(self, idx: int) -> int: |
| 28 | """ |